Ionization electrode sheet, ionization module equipped with ionization electrode sheet, and ion tunnel type air purification and disinfection device

Abstract

The present invention provides an ionization electrode sheet, an ionization module equipped with the ionization electrode sheet, and an ion tunnel air purifying and disinfecting device, in which the ionization electrode sheet is provided with through-holes including concentric arcs, loop arcs, and loop angles, the loop arcs and loop angles accelerating and guiding electrons to suppress ozone generation, and the ionization module including multiple ionization electrode sheets and ion emission needles forms a tunnel-type ionization channel, promoting ionization to form a larger amount of plasma and improving air purification effects. The ionization module, together with an adsorption module, an ion module, and an air speed control module, forms an ion tunnel air purifying and disinfecting device, which can purify nano-level particles such as PM0.3 and even PM0.1, has high-efficiency nano-level purification capabilities, and also has excellent bacterial and viral elimination capabilities. It has a large air volume, low energy consumption, is ozone-free, nitrogen oxide-free, and achieves high-performance, safe, and environmentally friendly air purification effects.

Description

[Technical Field]

[0001] The present invention relates to the technical field of air purification, and in particular to an ionization electrode sheet, an ionization module equipped with an ionization electrode sheet, and an ion tunnel type air purification and disinfection device. [Background technology]

[0002] As China's economic development level improves, air pollution has become a major threat to people's physical health in public buildings, homes and other places. Therefore, it is extremely important to effectively eliminate airborne particulate matter and microorganisms, such as viruses, bacteria and fungi, and purify the air. Therefore, it is of great significance to research technologies and equipment with ultra-high-efficiency air purification and disinfection functions.

[0003] Chinese patent application number CN202211742181.6 discloses a low-temperature plasma air sterilization device, which includes a plasma generation module, which includes a power circuit system, a cylindrical ground electrode, and a discharge electrode. The discharge electrode is disposed within the cylindrical ground electrode's internal cavity. When the device is in use, external air enters the cylindrical ground electrode's internal cavity through an air outlet, and current is applied to the electrode rod. The dielectric barrier discharge structure consisting of the electrode rod, insulating tube, and cylindrical ground electrode generates a large amount of low-temperature plasma active material. When the air passes through the air vent and is discharged through the air outlet, the plasma active material destroys bacteria and viruses in the air, improving air sterilization efficiency. However, the plasma generation module of this device easily generates ozone by forming an arc between the positive and negative electrodes during ionization. To remove the ozone, the internal cavity of the cylindrical ground electrode must be filled with an ozone-removing particle catalyst. This increases the complexity and cost of the device and limits the effectiveness of the particle catalyst in removing ozone when purifying large volumes of air.

[0004] The patent, filed under Chinese Patent No. CN201610990415.7, discloses an air purification method that suppresses ozone generation, including an ionization step in which air is passed through a first discharge field to ionize it into positive and negative ions, causing fine dust particles in the air to collide with the ions and become positively or negatively charged, thereby forming ozone from some of the oxygen in the air; a collection step in which the positively or negatively charged fine dust particles are moved toward a dust collection plate by the action of the first discharge field and adsorbed onto the dust collection plate; and an ozone removal step in which the air that has passed through the collection step passes through a second discharge field in the opposite direction to the first discharge field to reduce the ozone formed in the ionization step to oxygen. This method requires the installation of a separate second discharge field to remove ozone, significantly increasing the cost of air purification. Furthermore, conventional purification equipment only focuses on circulating purification capacity, resulting in poor single-cycle purification and poor purification efficiency.

[0005] Therefore, in order to solve the above problems, it is necessary to design an improved ionization electrode sheet, an ionization module equipped with an ionization electrode sheet, and an ion tunnel type air purification and disinfection device. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention provides an ionization electrode sheet, an ionization module equipped with the ionization electrode sheet, and an ion tunnel air purification and disinfection device, in which the ionization electrode sheet is provided with front and rear through-holes including concentric arcs, loop arcs, and loop angles to accelerate and guide electrons and suppress the generation of ozone, and the ionization module, which includes multiple ionization electrode sheets and ion emission needles, forms a tunnel-type ionization channel to promote ionization and form a larger quantity of plasma. The ionization module, together with the adsorption module, ion module, and air speed control module, forms an ion tunnel air purification and disinfection device that has a large air volume, low energy consumption, is free of ozone and nitrogen oxides, is high-performance, and achieves the goal of safe and environmentally friendly air purification.

[0007] In order to achieve the above object, the present invention provides an ionization electrode sheet, in which a through hole is formed, and the contour line of the through hole includes a plurality of concentric arcs having the same radius and not connected to each other, a loop arc extending in a direction opposite to and tangent to one of the concentric arcs, and a loop angle located between two adjacent loop arcs, wherein the loop angle has a sharp corner of 90° or less, and the distance from the apex of the sharp corner to the center of the concentric arc is longer than the radius of the concentric arc, and the loop arc and loop angle serve to accelerate and guide electrons.

[0008] The present invention also provides an ionization module comprising a plurality of ionization electrode sheets arranged at equal intervals and a conductor fixing member connecting the ionization electrode sheets, the ionization electrode sheets having the above-mentioned characteristics, the through holes of the plurality of ionization electrode sheets corresponding to each other to form a tunnel-shaped ionization channel, and the ionization module further comprising an ion emission needle having a tip located in a center point region of the ionization channel. A positive high-voltage emitter is connected to the exterior of the conductor fixing member, and a negative high-voltage emitter is connected to the exterior of the ion emission needle.

[0009] The present invention also provides an ion tunnel type air purification and disinfection device, which includes the above ionization module and is used to efficiently generate plasma.

[0010] Furthermore, the ion tunnel type air purification and disinfection apparatus includes a wind speed control module, a plurality of ion modules, at least one ionization module and at least one adsorption module arranged sequentially along the air flow direction, the wind speed control module is connected to the ion modules, the wind speed control module controls the number of ion modules to operate according to the wind speed passing through the ion tunnel type air purification and disinfection apparatus, the ion modules are respectively connected to the ion modules and the adsorption modules, and supply operating voltages to the ion modules and the adsorption modules.

[0011] Furthermore, the ionization module is oriented so that the tip of the ion emission needle faces the adsorption module. [Effects of the Invention]

[0012] 1. In this invention, the ionization electrode sheet is provided with front and rear through-holes consisting of concentric arcs, loop arcs, and loop angles. The loop arcs and loop angles accelerate and guide electrons, suppressing the generation of ozone and nitrogen oxides during ionization. The ionization module, which has multiple ionization electrode sheets and ion-emitting needles, forms a tunnel-type ionization channel, which can generate a larger amount of plasma during ionization and improve the ionization purification effect on air. The ionization module, together with the adsorption module, ion module, and wind speed control module, forms an ion tunnel-type air purification and disinfection device. The adsorption module not only has excellent adsorption performance, but also low wind resistance, low energy consumption, and high adsorption purification effects. Test results show that this device not only meets the PM2.5 level of purification capability, but can also purify nano-level particles as low as PM0.3 and even PM0.1. It has high-efficiency nano-level purification capabilities and excellent bacterial and viral elimination capabilities. It has a large air volume, low energy consumption, and is ozone- and nitrogen oxide-free, achieving high-performance, safe, and environmentally friendly air purification effects.

[0013] 2. The loop corner region of the ionization electrode sheet of the present invention is the region where high concentrations of positive ions are generated, and the loop arc can guide and accelerate electrons into the loop corner structure. In the ionization module consisting of multiple ion electrode sheets and ion-emitting needles, free electrons escape spherically at the tip of the needles, forming a negative charge state with oxygen molecules, various fine particles, and microorganism particles in the air. At the same time, due to the action of the positive voltage ionization electrode sheet, some of the charge returns to the ionization electrode sheet, which simultaneously adsorbs the charges of the molecules in the air, forming positive ions and further forming plasma. The fine particles and microorganisms in the plasma are strongly adsorbed when they enter the adsorption module, fulfilling the role of efficient air purification. In addition, the loop angle increases the quantitative level of positive ions and fits closely with the large amount of negative ions generated from the negative ion-emitting needle, while making it even more difficult for arcs to occur between the positive and negative electrodes. The free electrons collected in the large amount of ionization electrode sheet are guided to the sharp corner area of ​​the loop angle by the loop arc and loop angle, and the distance between this corner and the ion-emitting needle is relatively long and provides a safe gap. Therefore, in cooperation with the high voltage operating frequency, a high plasma state non-arc ionization structure is generated, which prevents the generation of ozone and nitrogen oxides at the source.

[0014] 3. The adsorption module of the present invention uses uniform spacer strips to ensure that all membrane electrode sheets in the membrane electrode sheet set maintain a stable distance from each other, preventing contact due to deformation when the membrane electrode sheets are applied and ensuring balanced distribution of field potential and corona field, thereby achieving more ideal purification and bacterial and viral elimination effects. The uniform spacer strips not only serve to fix, support, and evenly distribute all membrane electrode sheets, but also prevent excessive increase in cross-sectional wind resistance due to their structure and vertical arrangement on the membrane electrode sheet set. At the same time, in line with the spacing of the membrane electrode sheets, the ventilation rate of the adsorption module reaches approximately 70%, achieving ultra-low wind resistance and significantly reducing the energy consumption costs of air purification.

[0015] 4. The ion tunnel air purification and disinfection device of the present invention is equipped with a wind speed control module, which can flexibly control the number of operating ion modules by sensing the wind speed, so that the air purification and disinfection equipment can adapt to places with different ventilation requirements, especially places where wind speed needs to be intelligently controlled. This method can also reduce energy consumption and avoid energy waste. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is a schematic diagram showing the overall structure of an ionization electrode sheet according to the present invention and a locally enlarged structure of a through-hole. [Figure 2] 1 is a schematic diagram of the spatial flow direction of free electrons in an ionization electrode sheet according to the present invention. [Figure 3] 1 is a structural schematic diagram of a first form of one through-hole in an ionization electrode sheet according to the present invention. [Figure 4] 1 is a structural schematic diagram of a second type of through-hole in an ionization electrode sheet according to the present invention. [Figure 5] 2 is a schematic diagram showing the structure of a plurality of through-holes in an ionization electrode sheet according to the present invention. FIG. [Figure 6] 3A to 3C are various other structural schematic diagrams of one through-hole in the ionization electrode sheet of the present invention. [Figure 7] 1 is a schematic diagram of the overall structure of the ionization module of the present invention. [Figure 8] 1 is a schematic diagram of the spatial distribution of free electrons in the ionization channel formed by the ionization module of the present invention. [Figure 9] 1 is a schematic diagram of the internal structure of an ion tunnel type air purification and disinfection device according to the present invention. [Figure 10] 1 is a structural schematic diagram of an adsorption module. [Figure 11] FIG. 11 is a front view of the suction module of FIG. 10. [Figure 12] FIG. 12 is an enlarged view of part A in FIG. [Figure 13] 1 is a schematic diagram of the overall structure of a membrane electrode sheet. [Figure 14] 1 is a schematic diagram of the overall structure of uniform spacer strips. [Figure 15] FIG. 1 is a schematic diagram of a combination of one ionization module and two to four adsorption modules connected in series. [Figure 16] 1 is a schematic diagram showing an ionization module and an adsorption module connected in series to enhance the effect as a purification module. [Figure 17] is a schematic diagram of a system in which four purification modules are arranged in parallel. [Figure 18] 1 is a schematic diagram of the overall structure of the ion module. [Figure 19] 1 is a schematic diagram of the overall structure of the wind speed control module. [Figure 20] 1 is a circuit diagram of the basic control principle of the wind speed control module. [Figure 21] 1 is a schematic diagram of an ion tunnel type air purifying and disinfecting device according to a first embodiment. [Figure 22] 22 is a schematic diagram of the internal structure of FIG. 21 with the end caps and vents removed. [Figure 23] 1 is a structural schematic diagram of the ionization electrode sheets employed in Comparative Examples 1 to 5. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0017] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] 1 , the ionization electrode sheet 110 has through-holes that penetrate the sheet from front to back, and the contour of each through-hole consists of a plurality of concentric arcs 111 that are the same radius and are not connected to one another, a loop arc 112 that extends in a direction opposite to and tangent to one of the concentric arcs 111, and a loop angle 113 that is located between two adjacent loop arcs. The loop angle 113 has a sharp corner 114 of 90° or less, and the distance from the apex of the sharp corner 114 to the center P of the concentric arc 111 is longer than the radius of the concentric arc 111, and the loop arc 112 and the loop angle 113 serve to accelerate and guide electrons.

[0019] In particular, when the ionization electrode sheet 110 having the loop angle 113 and the loop arc 112 is used, the area of ​​the loop angle 113 on the ionization electrode sheet 110 is the area where a high concentration of positive ions are generated, which can increase the quantitative level of positive ions and fit closely with the large amount of negative ions generated from the negative ion emission needle 120, while making it more difficult for arcs to occur between the positive and negative electrodes. The large amount of free electrons collected in the ionization electrode sheet 110 are guided by the loop arc 112 and the loop angle 113 to the area of ​​the sharp corner 114 of the loop angle 113, and the distance between this corner and the ion emission needle 120 is relatively long and provides a safe gap. Therefore, in cooperation with the high voltage operating frequency, a high plasma state non-arc ionization structure is generated, which prevents the generation of ozone and nitrogen oxides at the source.

[0020] In this application, the ionization electrode sheet 110 is a metal conductive plate, and the through-holes are arranged in an array on the metal conductive plate. The total arc length of the multiple concentric arcs 111 along the contour of one through-hole accounts for 30% or more of the perimeter of the concentric circles. As shown in FIG. 2, the radius of the loop arc 112 is smaller than the radius of the concentric arc 111, and a converging loop angle 113 is formed between two adjacent loop arcs 112, forming a path that guides electrons toward the loop angle 113.

[0021] As shown in Fig. 3, the converging loop angle 113 may be formed by the direct intersection of two adjacent loop arcs 112. As shown in Fig. 4, the loop angle 113 may be formed by the intersection of two adjacent loop arcs 112 with a line connecting the two adjacent loop arcs. Alternatively, the loop angle 113 may be formed by the intersection of the free ends of two lines intersecting two adjacent loop arcs 112, i.e., as shown in Fig. 1, the loop angle 113 may be formed by one end of the loop arc 112 intersecting a line and the other end being tangent to the adjacent concentric arc 111. Preferably, the two lines intersect perpendicularly.

[0022] The radius of the concentric arc 111 is 28 to 35 mm, and the distance from the sharp corner 114 to the center of the concentric arc 111 is 42 to 50 mm. The number of through holes in the metal conductive plate 115 is determined according to the air volume, and the purification air volume of one through hole is 60 to 70 m 3 is.

[0023] In some specific embodiments, the number of through-holes on one ionization electrode sheet 110 is 16, distributed in a 4x4 pattern. The number of concentric arcs 111 in one through-hole is four, and the number of loop angles 113 is correspondingly four.

[0024] Those skilled in the art should understand that the number of concentric arcs in one through hole is not limited to four, and can be specifically set according to actual needs. As shown in FIG. 5, the number of concentric arcs 111 in one through hole is 3 to 12, and the number of loop angles 113 is the same as the number of concentric arcs 111.

[0025] In some specific embodiments, when the number of concentric arcs 111 in one through-hole is an even number, the arc lengths of the two concentric arcs 111 that share the center of the concentric circle as a symmetric point are equal.

[0026] In some specific embodiments, the arc lengths of the concentric arcs 111 of one through-hole are all equal.

[0027] 7, the ionization module 100 having the above-described ionization electrode sheets 110 includes a plurality of ionization electrode sheets 110 arranged at equal intervals and a conductor fixing member 130 connected to the ionization electrode sheets 110. The through-holes of the plurality of ionization electrode sheets 110 correspond to each other to form tunnel-type ionization channels. The ionization module 100 also includes an ion emission needle 120 with a needle tip located at the center of the ionization channel. A positive voltage emitter is connected to the exterior of the conductor fixing member 130, and a negative voltage emitter is connected to the exterior of the ion emission needle 120. The needle tip of the ion emission needle 120 is located at the center of the ionization channel, and the needle tip is located not only at the center of the through-hole plane but also at the center of the thickness of the ionization channel.

[0028] In particular, in the ionization module 100, which is composed of multiple ionization electrode sheets 110 and ion emission needles 120, free electrons escape from the tips of the ion emission needles 120 in a spherical shape to the outside, forming a negative charge state together with oxygen molecules, various fine particles, and microorganism particles in the air, as shown in Figure 8. At the same time, due to the action of the positive voltage ionization electrode sheet 110, some of the charges return to the ionization electrode sheet 110, which then adsorbs the charges of the molecules in the air, forming positive ions and further forming plasma. The fine particles and microorganisms in the plasma are strongly adsorbed when they enter the adsorption module 200, fulfilling the role of efficient air purification.

[0029] Specifically, the ion emission needles 120 are made of a metal conductor, and the ends of the ion emission needles 120 are fixed to a conductor connection plate 140, which is connected to a negative voltage emitter. The diameter of the ion emission needles 120 tapers from the end connected to the conductor connection plate 140 to the needle tip, with the diameter at the needle tip being the smallest. This allows a large number of negative ions to accumulate near the tip of the ion emission needles 120 when in operation, and releases spherical free electrons to the outside, forming a high-concentration negative ion generating region at the needle tip and improving the ionization effect. Furthermore, the concentration of negative ions is inversely proportional to the distance from the needle tip, and the concentration of negative ions tends to decrease geometrically with increasing distance from the needle tip.

[0030] More specifically, the conductor connection plate 140 is nested within the conductor fixing member 130, with an insulating layer provided between them. The number of ion emission needles 120 is set to match the number of through-holes in the ionization electrode sheet 110. In this embodiment, one ion emission needle 120 is provided for each through-hole, and the lengths of the ion emission needles 120 are set to match the number and spacing of the ionization electrode sheets 110, so that the tips of the ion emission needles 120 are located in the center point region of the ionization channel, i.e., the tips of the ion emission needles 120 when viewed from the front or side are located at the center of the through-hole or the central region in the thickness direction of the ionization electrode sheet 110.

[0031] In some specific embodiments, the ion emitting needle 120 may be wired inside a plastic case, or may be drilled after being fixed in a PCB substrate mode, leaving only the needle and the tip of the needle to emit free electrons, and an insulating potting may be performed inside the plastic case groove to minimize leakage of high voltage electricity and ensure that the high voltage terminal can be normally connected to the high voltage line.

[0032] In some specific embodiments, the no-load voltage difference between the positive high-voltage emitter and the negative high-voltage emitter is 20 to 50 kV.

[0033] In a specific embodiment, the number of ionization electrode sheets 110 is two or more, and the spacing between the ionization electrode sheets 110 is 3 to 30 mm, and the spacing between the ionization electrode sheets 110 depends on the number of ionization electrode sheets 110.

[0034] The purification air volume of one through-hole in one ionization electrode sheet 110 is 60 to 70 m 3 is.

[0035] As shown in Figure 9, the ion tunnel type air purification and disinfection apparatus includes an ionization module 100 that efficiently generates plasma. The ion tunnel type air purification and disinfection apparatus also includes an air speed control module 300, a plurality of ion modules 400, at least one ionization module 100 arranged sequentially along the air flow direction, and at least one adsorption module 200. The air speed control module 300 is connected to the ion modules 400, and the air speed control module 300 controls the number of ion modules 400 that operate according to the speed of air passing through the ion tunnel type air purification and disinfection apparatus. The ion module 400 is connected to the ionization module 100 and the adsorption module 200, respectively, and supplies operating voltages to the ionization module 100 and the adsorption module 200.

[0036] Specifically, the ionization module 100 is oriented so that the tip of its ion emission needle 120 faces the adsorption module 200. Because high-voltage electrons have a driving force, they move toward the needle tip and then escape from the ion emission needle 120. Due to this driving principle, the tip of the ion emission needle 120 must be aligned with the wind direction. If the ionization module 100 is positioned in the opposite direction, the air purification effect of this ion tunnel air purification and disinfection device will be significantly reduced.

[0037] As shown in Figure 10, the adsorption module 200 includes a membrane electrode sheet set and uniform spacer strips 220 for fixing the membrane electrode sheet set. The membrane electrode sheet set includes a positive membrane electrode sheet set 2101 and a negative membrane electrode sheet set 2102, in which the same number of membrane electrode sheets 211 are arranged in opposite directions, and the membrane electrode sheets 211 of the positive membrane electrode sheet set 2101 and the negative membrane electrode sheet set 2102 are arranged crosswise at equal intervals. 11 and 12 , the positive electrode membrane sheet set 2101 has a fixing strip 212 at one longitudinal end of the membrane electrode sheet 211, and the other end is free, and the negative electrode membrane sheet set 2102 has a fixing strip 212 at one longitudinal end of the membrane electrode sheet 211, and the other end is free, with the free ends of the positive electrode membrane electrode sheet set 2101 and the negative electrode membrane electrode sheet set 2102 crossing in opposite directions, and the membrane electrode sheets 211 of the positive electrode membrane electrode sheet set 2101 and the negative electrode membrane electrode sheet set 2102 crossing at equal intervals. In actual application, the fixing strip 212 of the positive electrode membrane electrode sheet set 2101 is connected to the positive electrode of the ionic module 400, and the fixing strip 212 of the negative electrode membrane electrode sheet set 2102 is connected to the negative electrode of the ionic module 400. At one end of the positive electrode membrane sheet set 2101 and the negative electrode membrane sheet set 2102 where the fixing strip 212 is provided, a plastic shell obtained by perfusion molding is also provided, which serves to protect the membrane electrode sheet 211.

[0038] As shown in Figure 13, the membrane electrode sheet 211 comprises a metal conductive alloy sheet and an insulating thin film layer encasing the metal conductive alloy sheet. All corners of the metal conductive alloy sheet are smooth arc angles to prevent sharp corners from tearing the insulating thin film layer. The thickness of the metal conductive alloy sheet is 0.05 to 1 mm. The width of the metal conductive alloy sheet is 5 to 500 mm, and in a membrane electrode sheet set, the distance between the insulating thin film layers of adjacent membrane electrode sheets 211 (film spacing) is 0.8 to 3 mm.

[0039] In actual applications, the width of the metal conductive alloy sheet represents the most important path of the air passing through the adsorption module 200, and must be accurately designed according to the target air volume for air purification; the wider the width, the greater the force acting on pollutants in the passing air, such as particulate matter, bacteria, viruses, etc. The membrane electrode sheets 211 are arranged at equal intervals, and the membrane spacing setting is related to parameters such as the air volume tailored to the equipment, the differential pressure parameters and power parameters of the ion module 400, the width and length of the metal conductive alloy sheet of the membrane electrode sheet 211, the emitter of the ion module 400, and the spacing between the membrane electrode sheets, and those skilled in the art can determine the membrane spacing according to actual needs.

[0040] 14, the uniform spacer strip 220 includes a horizontal strip 221, a plurality of narrow strips 222 connected perpendicularly to the horizontal strip 221, and fixed chucks 223 at both ends of the horizontal strip 221. The uniform spacer strip 220 is arranged perpendicular to the membrane electrode sheet set, with the extension direction of the horizontal strip 221 coinciding with the arrangement direction of the membrane electrode sheets 211. The narrow strips 222 of the uniform spacer strip 220 are inserted between two adjacent membrane electrode sheets 211, and the fixed chucks 223 fix the uniform spacer strip 220 to the membrane electrode sheet set. The uniform spacer strip 220 supports and separates the membrane electrode sheets 211. In this configuration, the uniform spacer strip 220 ensures that all membrane electrode sheets 211 in the membrane electrode sheet set maintain a stable distance from each other, thereby ensuring balanced distribution of field potential and corona field and achieving more ideal purification and bacterial and virus extinction effects.

[0041] In particular, the uniform spacer strips 220 not only fix and support all of the membrane electrode sheets 211, preventing them from deforming and coming into contact with each other during application, and ensuring uniform distribution, but also, due to the structure of the uniform spacer strips 220 and the way in which they are arranged perpendicular to the membrane electrode sheet set, do not excessively increase the cross-sectional wind resistance. At the same time, in accordance with the spacing setting of the membrane electrode sheets 211, the ventilation rate of the adsorption module 200 reaches approximately 70%, which is similar to the wind resistance when a square duct is converted into a circular duct (the diameter is the width of the square duct), achieving an ultra-low wind resistance state and significantly reducing the energy consumption cost of air purification.

[0042] The number of narrow strips 222 in the uniform spacer strips 220 is determined according to the number of membrane electrode sheets 211 in the membrane electrode sheet set, and the width of the narrow strips 222 is determined according to the spacing between the membrane electrode sheets 211. The number of uniform spacer strips 220 in the adsorption module 200 can be flexibly adjusted by those skilled in the art according to the actual fixing conditions of the membrane electrode sheets 211.

[0043] The material of the uniform spacer strip 220 is a highly insulating material with high toughness and certain hardness, including ABS (a terpolymer of three monomers, i.e., acrylonitrile, butadiene, and styrene) plastic, PC (polycarbonate) plastic, or a composite plastic of the two, PA6 (nylon) material, glass fiber reinforced PET (polyethylene terephthalate) material, PS (polystyrene) material, PP (polypropylene) material, and PPR (tri-type polypropylene) material.

[0044] Specifically, the distance between the ionization module 100 and the adsorption module 200 (module spacing) is 20 to 100 mm, and the module spacing is the shortest distance between the ionization module 100 and the metal conductor of the adsorption module 200. In practical applications, the number of ionization modules 100 or adsorption modules 200 can be 1 to 4. For example, if there are two or more ionization modules 100 or adsorption modules 200, the adsorption modules 200 are connected in series or in parallel to ensure that the input air passes through the ionization module 100 first. As shown in Figure 15, a combination of one ionization module 100 and two to four adsorption modules connected in series can be used. The spacing between the adsorption modules 200 does not need to be strictly limited, and a larger air volume can be purified after being connected in series. As shown in Figure 16, the ionization module 100 and the adsorption module 200 can also be connected in series to enhance the purification effect as a single purification module. As shown in Figure 17, a channel purification module with four times the purification capacity can be formed by connecting four sets of purification modules in parallel. In this method, gaps between the purification modules are sealed and the homogeneous connection lines are connected with high-voltage power supply lines.

[0045] 18, the ion module 400 includes a positive high-voltage output wire 410, a negative high-voltage output wire 420, and a low-voltage input wire 430. The positive high-voltage output wire 410 is connected to the ionization electrode sheet 110 of the ionization module 100, and the negative high-voltage output wire 420 is connected to the ion emission needle 120. The ion module 400 further includes a plastic housing 440 and an epoxy resin injection adhesive layer 450 for protecting the internal assembly.

[0046] The number of ion modules 400 is two or more, and the ion modules 400 can be supplied with DC 12V or AC 110 to 220V.

[0047] 19, the air speed control module 300 is installed at the air inlet 500 or the air outlet 600 of the ion tunnel type air purification and disinfection apparatus to monitor the air speed input to the ion tunnel type air purification and disinfection apparatus. The air speed control module 300 includes a fixing plate 310, a calculation and control circuit set 330 installed on the fixing plate 310, a power input terminal 340, a plurality of power output terminals 350, and an air detection sensor set 320 installed perpendicular to the fixing plate 310. One ion module 400 is connected to each of the power output terminals 350. The air detection sensor set 320 is installed opposite the air inlet 500 or the air outlet 600 of the ion tunnel type air purification and disinfection apparatus to monitor the air speed and transmit a signal to the calculation and control circuit set 330. The calculation and control circuit set 330 controls the number of ion modules 400 operating via the power output terminal 350.

[0048] The wind speed control module 300 flexibly controls the number of ion modules 400 that are activated by sensing the wind speed. The basic control principle of the wind speed control module 300 is as shown in FIG. 20, in which two wind sensation comparison signals from the wind sensing sensor set 320 control two relay switches through the arithmetic chip control module of the arithmetic control circuit set 330 to respectively control the power on / off of the two power output terminals 350, which in turn controls the operating status of the ion modules 400 connected thereto, allowing the air purification and disinfection equipment to adapt to places with different ventilation requirements, especially places that require intelligent wind speed control, and this method also reduces energy consumption and avoids energy waste.

[0049] In addition, when used, the ion tunnel type air purification and disinfection device of the present invention includes various parts and accessories that connect or fix the ionization module 100, the adsorption module 200, the ion module 400, and the air speed control module 300, as well as a sealed housing that encloses the ionization module 100, the adsorption module 200, the ion module 400, and the air speed control module 300, and the sealed housing has an air inlet 500 and an air outlet 600 at both ends. The structure and quantity of the parts, accessories, and housing are not limited herein.

[0050] The ion tunnel type air purification and disinfection device of the present invention can be applied to building ventilation ducts, large-scale purification units embedded in the ducts, mobile purification equipment, wall-mounted purification equipment, ceiling-mounted purification equipment, tabletop purification equipment, cold chain freshness preservation environments, pharmaceutical production environments, large-scale aquaculture and livestock farming, infection prevention and contagion prevention environments for medical systems, high-precision equipment and facility production environments (high-purity environments that are the core of semiconductor chip production), high-precision parts production environments (high-demand plating spray industry), etc.

[0051] Example 1 21 and 22, in this embodiment, 3 We provide an ion tunnel air purification and disinfection device, model IT1000-2, capable of purifying a large volume of air at 1000 / h. This device comprises a wind speed control module 300, two ion modules 400 (positive and negative voltage difference 30 kV, input voltage 220 V AC, operating current ≥ 80 mA, operating frequency 35 kHz ± 5%), one ionization module 100, and one adsorption module 200, arranged in sequence along the wind direction. The wind speed control module 300 is connected to the ion modules 400, which controls the number of ion modules 400 that operate according to the wind speed passing through the ion tunnel air purification and disinfection device. When the wind speed exceeds 0.5 m / s, the wind speed switch activates one ion module 400. When the wind speed exceeds 2 m / s, the second ion module 400 also activates. The two ion modules 400 jointly drive the purification module. The ion modules 400 are connected to the ionization module 100 and the adsorption module 200, respectively. The module spacing between the ionization module 100 and the adsorption module 200 is 63 mm.

[0052] In this device, the ionization module 100 adopts an ionization electrode sheet 110 containing 16 through-holes (distributed in 4x4). As shown in FIG. 1, the number of ionization electrode sheets 110 is five, the spacing is 5 mm, the concentric arcs 111 of the through-holes are four, and the radius is 30 mm. The single-hole purification capacity of the through-holes is 60-70 m 3The loop angle 113 is formed by two adjacent loop arcs 112 and two straight lines intersecting each other, and one pointed corner 114 of the loop angle 113 is 90°, and the distance from the pointed corner 114 to the center of the concentric arc 111 is 44.23 mm.

[0053] The adsorption module 200 uses 120 membrane electrode sheets 211, with 60 positive and 60 negative membrane electrode sheet sets, and a membrane spacing of 1.6 mm. The metal conductive alloy sheets of the membrane electrode sheets 211 are stainless steel sheets, and the insulating thin film layers are PET films. The stainless steel sheets are 60 mm wide, 267.4 mm long, and 0.2 mm thick, resulting in a total thickness of 0.6 mm. The uniform spacer strips 220 are made of ABC material, with 5 uniform spacer strips 220, 119 narrow strips 222, and a width of 2 mm for the horizontal strips of the uniform spacer strips 220.

[0054] When an ion tunnel type air purification and disinfection device is used in a square duct with a width of 267.4 mm, the ventilation rate is calculated using the above parameters.

[0055] The duct area is calculated using the following formula:

[0056]

number

[0057] The cross-sectional area of ​​the membrane electrode sheet and uniform spacer strip in the duct area is calculated by the following formula:

[0058]

number

[0059] The ventilation rate is calculated by the following formula:

[0060]

number

[0061] The ventilation rate of the adsorption module 200 reaches 70%, achieving an ultra-low wind resistance state, reducing the energy consumption of the device and lowering the user's usage costs.

[0062] The single-pass microbial purification efficiency, single-pass virus purification efficiency, and ozone and nitrogen oxide concentrations at the device's air outlet are measured. The basis and method for measuring single-pass microbial purification efficiency refer to Appendix D of national standard GB / T34012-2017, the basis and method for measuring single-pass virus purification efficiency refer to national standard GB / T18204.5-2013, and the basis and method for measuring ozone concentration refer to national standard GB21551.3-2010. The lower limit of the ozone concentration measurement instrument is 0.001 mg / m 3 The nitrogen oxide concentration is measured by the direct reading method. All measurements above are performed after the attached fan is operated normally and preheated for 10 minutes to reach a stable state, and the air volume of the attached fan is 1200 m 3 / h. The measurement results are shown in Tables 1 to 3.

[0063] Measurement results of single-use virus inactivation rate using the device in embodiment 1

[0064] [Table 1]

[0065] Measurement results of single microbial inactivation rate using the device in embodiment 1

[0066] [Table 2]

[0067] Measurement results of ozone concentration and nitrogen oxide concentration using the device in embodiment 1

[0068] [Table 3]

[0069] As can be seen from Tables 1 to 3, the ion tunnel type air purification and disinfection device of this embodiment 1 has excellent bacteria and virus elimination functions, a high air purification and disinfection capacity, and is highly safe as it generates almost no ozone or nitrogen oxides.

[0070] (Comparative Examples 1 to 5) Comparative Examples 1 to 5 each provide an ion tunnel type air purification and disinfection device. Compared with embodiment 1, as shown in FIG. 23, the through holes in the ionization electrode sheet 110 are different (including differences in the structure and diameter of the concentric arcs), and numbers 1 to 5 in the figure correspond to comparative examples 1 to 5, respectively. The rest are generally similar to embodiment 1, so they will be omitted here.

[0071] Table 4 shows the results of measuring the single-time microbial inactivation rate, single-time viral inactivation rate, and ozone concentration and nitrogen oxide concentration at the air outlet of the devices of Comparative Examples 1 to 5.

[0072] Performance measurement results of the devices of Comparative Examples 1 to 5

[0073] [Table 4]

[0074] As can be seen from Table 4, the through-hole contours of the ionization electrode sheet of Comparative Example 1 do not have concentric arcs but only concentric contacts, resulting in low wind resistance but also low plasma concentration generation and reduced purification efficiency. Furthermore, there is no loop acceleration mechanism where the concentric arcs and loop arcs meet, and a quantitative matching relationship between positive and negative ions is not formed. Instead, a bump weak discharge mechanism is formed, resulting in the generation of small amounts of ozone and nitrogen oxides. The through-hole contours of the ionization electrode sheet of Comparative Example 2 only have a pair of concentric arcs and a loop arc, and the concentric arcs and the loop arcs do not form a complete loop angle. This asymmetric structure and uneven field structure result in reduced purification effectiveness. However, because the through-hole structure does not have a bump and also includes four pseudo-loop angles (pseudo-loop angles are incomplete loop angles, i.e., loop arcs and concentric arcs are connected at only one end), this ionization electrode sheet does not have a good purification effect but also suppresses the generation of ozone and nitrogen oxides. In Comparative Example 3, the through-hole diameter of the ionization electrode sheet was too small, and there was no loop arc or loop angle, resulting in poor purification effect. The spacing between the through-holes was too small, resulting in the generation of small amounts of nitrogen oxides and ozone, demonstrating the importance of matching the spacing and voltage. The ionization electrode sheet in Comparative Example 4 lacked the concentric arc and loop angle mechanism, resulting in less than ideal purification effect, and there were too many bumps, resulting in the generation of small amounts of ozone and nitrogen oxides. The through-holes in Comparative Example 5 had a concentric circular structure, no loop arc or loop angle, and a radius that was too small, resulting in poor purification effect and the generation of large amounts of nitrogen oxides and ozone.

[0075] As mentioned above, the through-holes of the ionization electrode sheet are the main factors that affect the purification effect and the generation of ozone and nitrogen oxides. Data such as the proportion of the total concentric arc length of the through-hole outline, the radius of the loop arc and the radius of the concentric arc must all be strictly defined according to the technical solution of the present invention. In addition, the mechanism of the loop arc and loop angle must be matched with the voltage difference between the positive and negative ion electrodes. Only when matched and combined with the adsorption module can the air purification and disinfection device achieve a safer and more efficient purification effect.

[0076]

[0003] The present invention provides an ionization electrode sheet, an ionization module equipped with the ionization electrode sheet, and an ion tunnel air purification and disinfection device. The ionization electrode sheet has through-holes formed from concentric arcs, loop arcs, and loop angles, which accelerate and guide electrons to suppress the generation of ozone and nitrogen oxides during ionization. The ionization module, which has multiple ionization electrode sheets and ion-emitting needles, forms a tunnel-type ionization channel, which can generate a larger amount of plasma during ionization and improve the ionization purification effect on the air. The ionization module, together with the adsorption module, ion module, and wind speed control module, forms an ion tunnel air purification and disinfection device. The adsorption module not only has excellent adsorption performance, but also low wind resistance, achieving low energy consumption and high adsorption purification effects. This device not only meets the purification capacity of PM2.5 level, but can also purify nano-level fine particles such as PM0.3 and even PM0.1. It has high-efficiency purification capacity at the nano level, and at the same time has excellent bacteria and virus elimination function. It has large air volume, low energy consumption, no ozone and nitrogen oxides, high performance, and achieves safe and environmentally friendly air purification effects. It is also intelligent and can be applied to various places.

[0077] The above embodiments are for explaining the technical aspects of the present invention and are not intended to be limiting. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical aspects of the present invention without departing from the spirit and scope of the technical aspects of the present invention. [Explanation of symbols]

[0078] 100, ionization module; 110, ionization electrode sheet; 111, concentric arc; 112, loop arc; 113, loop corner; 114, pointed corner; 120, ion emission needle; 130, conductor fixing member; 140, conductor connection plate; 200, adsorption module; 2101, positive electrode film electrode sheet set; 2102, negative electrode film electrode sheet set; 211, film electrode sheet; 212, fixing strip; 220, uniform spacer strip; 221, horizontal strip; 222 , Narrow strip; 223, Fixing chuck; 300, Wind speed control module; 310, Fixing plate; 320, Wind sensor set; 330, Calculation control circuit set; 340, Power input terminal; 350, Power output terminal; 400, Ion module; 410, Positive high voltage output line; 420, Negative high voltage output line; 430, Low voltage input line; 440, Plastic housing; 450, Epoxy resin injection adhesive layer; 500, Wind input port; 600, Wind output port

Claims

1. an ionization electrode sheet, The ionization electrode sheet is provided with through holes, and the contour line of each through hole includes a plurality of concentric arcs having the same radius and not connected to each other, a loop arc extending in a direction opposite to and tangent to one of the concentric arcs, and a loop angle located between two adjacent loop arcs, the loop angle having a pointed corner of 90° or less, the distance from the apex of the pointed corner to the center of the concentric arc being longer than the radius of the concentric arc, and the loop arc and loop angle playing a role in accelerating and guiding electrons.

2. The ionization electrode sheet according to claim 1 , wherein the loop angle is formed by a direct intersection of two adjacent loop arcs.

3. 2. The ionization electrode sheet according to claim 1, wherein the loop angle may be formed by the intersection of two adjacent loop arcs and a straight line connecting the two adjacent loop arcs.

4. The ionization electrode sheet according to claim 1 , wherein the loop angle may be formed by the intersection of free ends of two straight lines intersecting with two adjacent loop arcs.

5. 5. The ionization electrode sheet according to claim 4, wherein the two straight lines intersect perpendicularly.

6. 2. The ionization electrode sheet according to claim 1, wherein the total arc length of all the concentric arcs of the contour line of one of the through-holes is 30% or more of the circumferential length of the concentric circles.

7. 2. The ionization electrode sheet according to claim 1, wherein the radius of the loop arc is shorter than the radius of the concentric arc.

8. 2. The ionization electrode sheet according to claim 1, wherein the number of concentric arcs in one through hole is 3 to 12, and the number of loop angles is the same as the number of concentric arcs.

9. 2. The ionization electrode sheet according to claim 1, wherein one ionization electrode sheet includes a plurality of the through holes arranged in an array.

10. 9. The ionization electrode sheet according to claim 8, wherein when the number of concentric arcs of the through-holes is an even number, the arc lengths of two concentric arcs that are symmetrical about the center of the concentric circle are equal.

11. 9. The ionization electrode sheet according to claim 8, wherein all of the concentric arcs of one through-hole have the same arc length.

12. 10. The ionization electrode sheet according to claim 9, wherein the radius of the concentric arcs 111 is 28 to 35 mm.

13. 9. The ionization electrode sheet according to claim 8, wherein the number of concentric arcs of one through hole is four, and the number of loop angles is correspondingly four.

14. 13. The ionization electrode sheet according to claim 12, wherein the distance from the apex of the sharp corner to the center of the concentric arc is 42 to 50 mm.

15. an ionization module, The ionization module comprises a plurality of ionization electrode sheets arranged at equal intervals and a conductor fixing member connecting the ionization electrode sheets, the ionization electrode sheets being the ionization electrode sheets described in any one of claims 1 to 14, the positions of the through holes of the plurality of ionization electrode sheets corresponding to each other to form an ionization channel with a tunnel structure, the ionization module further comprising an ion emission needle whose tip is located in the center point region of the ionization channel, a positive high voltage emitter connected to the outside of the conductor fixing member, and a negative high voltage emitter connected to the outside of the ion emission needle.

16. The ionization module of claim 15, characterized in that the ion emission needles are made of a metal conductive material, and the ends of the multiple ion emission needles are fixed to a conductive connection plate, and the conductive connection plate is connected to the negative high voltage emitter.

17. 17. The ionization module of claim 16, wherein the diameter of the ion emission needle gradually decreases along the direction from the end connected to the conductor connection plate to the needle tip, and the diameter of the needle tip is smallest.

18. 17. The ionization module according to claim 16, wherein the conductor connection plate is nested in the conductor fixing member, with an insulating layer provided therebetween.

19. The ionization module of claim 15, characterized in that the length of the ion emission needle is set to match the number of the ionization electrode sheets so that the tip of the ion emission needle is located in the center point region of the ionization channel.

20. 16. The ionization module according to claim 15, wherein a voltage difference between the positive high-voltage emitter and the negative high-voltage emitter under no load is 20 to 50 kV.

21. 16. The ionization module according to claim 15, wherein the number of the ionization electrode sheets is two or more, and the interval between adjacent ionization electrode sheets is 3 to 30 mm.

22. The purification air volume of one of the through holes in one of the ionization electrode sheets is 60 to 70 m ３ The ionization module according to claim 15, characterized in that:

23. It is an ion tunnel type air purification and disinfection device, The ion tunnel type air purification and disinfection apparatus includes the ionization module according to any one of claims 15 to 22, and is used to efficiently generate plasma.

24. 24. The ion tunnel type air purification and disinfection apparatus of claim 23, comprising a wind speed control module, a plurality of ion modules, at least one ionization module and at least one adsorption module sequentially arranged along an air flow direction, the wind speed control module is connected to the ion modules, the wind speed control module controls the number of ion modules to operate according to the speed of air passing through the ion tunnel type air purification and disinfection apparatus, the ion modules are respectively connected to the ion modules and the adsorption modules, and supply operating voltages to the ion modules and the adsorption modules.

25. 25. The ion tunnel type air purifying and disinfecting apparatus according to claim 24, wherein the ionization module is oriented such that the tip of the ion emitting needle faces the adsorption module.

26. 25. The ion tunnel type air purification and disinfection device of claim 24, wherein the adsorption module comprises a membrane electrode sheet set and uniform spacer strips for fixing the membrane electrode sheet set, the membrane electrode sheet set having a positive membrane electrode sheet set and a negative membrane electrode sheet set in which the same number of membrane electrode sheets are arranged in opposite directions, and the membrane electrode sheets of the positive membrane electrode sheet set and the negative membrane electrode sheet set are arranged crosswise at equal intervals.

27. The ion tunnel type air purifying and disinfecting apparatus of claim 26, wherein the material of the uniform spacer strips includes any one of ABS plastic, PC plastic, or a composite plastic of the two, PA6 material, glass fiber reinforced PET material, PS material, PP material, and PPR material.

28. 25. The ion tunnel type air purifying and disinfecting device according to claim 24, wherein the distance between the ionization module and the adsorption module is 20 to 100 mm.

29. The ion tunnel type air purifying and disinfecting apparatus of claim 24, wherein the number of the ionization modules or the adsorption modules is 1 to 4, and when the number of the ionization modules or the adsorption modules is two or more, the adsorption modules are arranged in series or in parallel.

30. 25. The ion tunnel type air purifying and disinfecting device of claim 24, wherein the ion module includes a positive high voltage output line, a negative high voltage output line, and a low voltage input line, the positive high voltage output line being connected to the ionization electrode sheet of the ionization module, and the negative high voltage output line being connected to the ion emitting needle.

31. 25. The ion tunnel type air purifying and disinfecting device according to claim 24, wherein the air speed control module is installed at an air inlet or an air outlet of the ion tunnel type air purifying and disinfecting device, and is for monitoring the air speed input to the ion tunnel type air purifying and disinfecting device.

32. 32. The ion tunnel type air purifying and disinfecting device of claim 31, wherein the air speed control module includes a fixing plate, a calculation and control circuit set provided on the fixing plate, a power input terminal, a plurality of power output terminals, and a wind detection sensor set provided perpendicular to the fixing plate, wherein one ion module is connected to each of the power output terminals, and the wind detection sensor set is provided opposite the wind inlet or wind outlet of the ion tunnel type air purifying and disinfecting device to monitor the wind speed and transmit a signal to the calculation and control circuit set, which controls the number of ion modules to be operated via the power output terminals.

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